TSA — Cycle Screening

Batch-adsorber (equilibrium) construction for 4-step temperature-swing CO₂/N₂ capture with an optional vacuum assist — the BAAM idea with the swing on the temperature axis. Heating vents waste up to T_INT, then collects product to T_H; the whole cycle is drawn on its two conjugate equilibrium planes and on the isostere map. Screening-grade by construction: spatially uniform, always at equilibrium.

Sorbent — extended dual-site Langmuir (c-basis)

Preset

q_s,1
mol/kg

b_0,1
m³/mol

ΔU₁
kJ/mol

q_s,2
mol/kg

b_0,2
m³/mol

ΔU₂
kJ/mol

ρ_p kg/m³ c_p,s J/kg/K ε

Temperatures & feed

T_L K T_INT K T_H K y_F mol frac CO₂ P_H bar

Cycle options

Cooling Vacuum assist at T_H P_vac bar Purity target for the isostere map line

Batch idealization: the bed is spatially uniform and always at equilibrium; the vent/collect gas leaves at the instantaneous composition and adsorption is a sharp front. Numbers are screening-grade — rank sorbents and spot regimes, then verify with a full model (cf. BAAM’s ×1.58 energy calibration against detailed simulation).

Cycle schematic

Conjugate construction

Isostere map — ln p_CO₂ vs −1/T

T_INT sweep at fixed T_H

Design map over (T_INT, T_H)